Does Heavens-above take atmospheric extinction into account? ----- Original Message ----- From: "Ed Cannon" <ecannon@mail.utexas.edu> To: <SeeSat-L@blackadder.lmsal.com> Sent: Sunday, August 26, 2001 4:15 AM Subject: Iridium 82 "?" flare okay > Last night Iridium 82 "?" (25467, 98-051A) flared pretty much > as predicted by Iridflar; maybe a bit fainter. Five minutes > later I was able to show a really nice predicted -6 flare from > Iridium 17 (24870, 97-034B) to a couple of passers-by. It was > only 9 degrees above the horizon and got me to wondering, as I > have before, about atmospheric extinction. I sometimes wonder > how variable the transparency of the sky (when it's "clear") > is near the horizon and how faithful the models are to it. > > Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA > > ----------------------------------------------------------------- > Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org > http://www2.satellite.eu.org/seesat/seesatindex.html > ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sun Aug 26 2001 - 06:32:46 PDT